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Q & A: what happens to magnets that repel?

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Most recent answer: 07/02/2015
Q:
if there is any change in magnetic material during two magnet repel each other?can there is any reaction?
- Rinesh (age 22)
Vadodara,Gujarat,India.
A:

When the two repelling magnets are brought near each other, that raises the magnetic energy. It increases the torque tending to make the domains lose their alignment. So it cause the magnetism to go down just a little because some of the domains can realign quickly. Over a very long time, it will slightly increase the rate at which the magnets will lose their magnetism. But for a first approximation, it's usually pretty close to say that the magnetism of each magnet doesn't change when they are brought near to each other.

We have some old answers related to this, e.g.  ; ; .

Mike W.


(published on 07/02/2015)

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